1
CONTENTS
INITIAL INSPECTION AND ASSEMBLY ...................2
VISIONPLUS EC331 OVERVIEW.................................2
A. Meter Description
..................................................2
B. LCD Display
..........................................................2
OPERATION MODES AND KEYPAD OPERATIONS...3
A. Operation Modes
......................................................3
B. Keypad Operations
................................................3
BEFORE YOUR FIRST USE ..........................…………4
A. Insert Batteries
.....................................................4
B. Soak the Electrode
.... ............................................4
C. Preparing Standard Solutions
.................................4
D. Setup and Calibrate the Electrode and Meter
...........5
USING VISIONPLUS EC331.........................................5
A. Power on/off
.........................................................5
B. Calibrate Conductivity
............................................5
C. Measure
...............................................................5
D. Hold Data
.............................................................5
REPLACE ELECTRODE…...........................................6
REPLACE THE OLD BATTERIES................................6
ERROR DISPLAYS AND TROUBLESHOOTING …....7
SPECIFICATIONS ........................................................8
WARRANTY .................................................................9
